References

For Polystichum

Kramer, K.U., and P.S. Green. 1990. Pteridophytes and Gymnosperms. In K. Kubitzki, ed., The families and genera of vascular plants. Springer-Verlag, Berlin. Google Scholar

Wagner, D.H. 1993. Polystichum. In Flora of North America Editorial Committee. 1993b. Flora of North America north of Mexico. Volume 2, pteridophytes and gymnosperms. Oxford Univ. Press, New York, NY. 475 pp. Google Scholar

Zhang, L.-B., and D.S. Barrington. 2013. Cyrtomium. In Flora of China, volume 2. Missouri Bot. Garden. Google Scholar